patch 9.0.1289: a newer version of clang can be used for CI Commit: https://github.com/vim/vim/commit/43e234e8b48caf59d6895a31628dad0bba4fd5c8 Author: Philip H <47042125+pheiduck@users.noreply.github.com> Date: Mon Feb 6 20:22:48 2023 +0000 patch 9.0.1289: a newer version of clang can be used for CI Problem: A newer version of clang can be used for CI. Solution: Switch from clang-15 to clang-16. (closes https://github.com/vim/vim/issues/11577)